Updated openstack/openstack
Project: openstack/keystone  d4b7f9491408e807e47894541569c304d1008b2a
null
Allow use of rules Policy driver

With the implementation of bp abstract-base-class-drivers , the
"rules" Policy driver couldn't be used anymore because it didn't
implement the methods in the base class.

This change makes it so that the rules Policy driver can be used
again.

bp abstract-base-class-drivers

Change-Id: Ia2a5d42007f7480c2757932afcde35f121e05cab